Magnetic pinning effects of epitaxial La

T. Petrisor, M.S. Gabor, C. Tiusan, V. Galluzzi, G. Celentano, S. Popa, A. Boulle, T. Petrisor

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Abstract

The present paper presents the effects of a nanostructured, ferromagnetic La1-xSrxMnO3(LSMO) thin film on the pinning characteristics of an epitaxial YBa2Cu3O7(YBCO) thin film deposited on top. Ordered arrays of LSMO grains were obtained upon growing the film on a terraced (001) SrTiO3substrate. The analyses of magnetic measurements revealed the presence of a complex vortex pinning mechanism within the YBCO film. With respect to a reference single YBCO layer, an additional pinning potential was observed. Its temperature evolution suggests that a magnetic pinning mechanism is responsible for improved pinning characteristics in the high temperature and field region. Based on the morphology of the underlying LSMO buffer, a strong pinning force is expected to arise due to the anti-dot formations, where a high magnetization gradient exists. © 2012 American Institute of Physics.
Original languageEnglish
Article number053919
Pages (from-to)-
JournalJournal of Applied Physics
Volume112
Issue number5
DOIs
Publication statusPublished - 1 Sep 2012
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Petrisor, T., Gabor, M. S., Tiusan, C., Galluzzi, V., Celentano, G., Popa, S., Boulle, A., & Petrisor, T. (2012). Magnetic pinning effects of epitaxial La. Journal of Applied Physics, 112(5), -. [053919]. https://doi.org/10.1063/1.4748049